14-20990467-G-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_022734.3(METTL17):​c.233G>T​(p.Ser78Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,461,846 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

METTL17
NM_022734.3 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.715
Variant links:
Genes affected
METTL17 (HGNC:19280): (methyltransferase like 17) Predicted to enable S-adenosyl-L-methionine binding activity and mitochondrial ribosome binding activity. Predicted to be involved in ribosomal small subunit biogenesis. Located in nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.055575162).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
METTL17NM_022734.3 linkuse as main transcriptc.233G>T p.Ser78Ile missense_variant 3/14 ENST00000339374.11 NP_073571.1
METTL17NM_001029991.2 linkuse as main transcriptc.233G>T p.Ser78Ile missense_variant 3/13 NP_001025162.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
METTL17ENST00000339374.11 linkuse as main transcriptc.233G>T p.Ser78Ile missense_variant 3/141 NM_022734.3 ENSP00000343041 P1Q9H7H0-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
0.00000342
AC:
5
AN:
1461846
Hom.:
0
Cov.:
33
AF XY:
0.00000413
AC XY:
3
AN XY:
727212
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000450
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsAug 16, 2021The c.233G>T (p.S78I) alteration is located in exon 3 (coding exon 3) of the METTL17 gene. This alteration results from a G to T substitution at nucleotide position 233, causing the serine (S) at amino acid position 78 to be replaced by an isoleucine (I). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.090
BayesDel_addAF
Benign
-0.21
T
BayesDel_noAF
Benign
-0.54
CADD
Benign
12
DANN
Benign
0.58
DEOGEN2
Benign
0.0079
T;.;.;T
Eigen
Benign
-1.6
Eigen_PC
Benign
-1.6
FATHMM_MKL
Benign
0.017
N
LIST_S2
Benign
0.26
T;T;T;T
M_CAP
Benign
0.0070
T
MetaRNN
Benign
0.056
T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
2.0
M;M;M;.
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.34
T
PROVEAN
Benign
-2.0
N;N;N;D
REVEL
Benign
0.0080
Sift
Benign
0.24
T;T;T;D
Sift4G
Benign
0.24
T;T;T;T
Polyphen
0.0010
B;B;B;.
Vest4
0.18
MutPred
0.38
Loss of disorder (P = 0.0314);Loss of disorder (P = 0.0314);Loss of disorder (P = 0.0314);.;
MVP
0.092
MPC
0.34
ClinPred
0.10
T
GERP RS
-1.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.074
gMVP
0.40

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr14-21458626; API